Protest at the Fed. Photo by Georgy Cohen.

Several hundred protesters, mostly young, turned the Greenway at Dewey Square into an impromptu protest village tonight, then marched toward Faneuil Hall - and across the street to the Federal Reserve Bank.

Occupy Boston, organized just over the last few days, seeks to protest what it says is subversion of the American economy and politics by Wall Street. Although some of the protesters came from an earlier demonstration outside the Bank of America building on Federal Street, the two events were planned by different groups.